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Integrated Ferroelectrics
An International Journal
Volume 155, 2014 - Issue 1: Proceedings of The Seventh Conference of the Asian Consortium on Computational Materials Science (ACCMS-7)
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Original Articles

The Dependence of the Magnetoresistance in Quantum Wells with Parabolic Potential on Some Quantities under the Influence of Electromagnetic Wave

Nguyen Dinh NamDepartment of Physics, College of Natural Science, Viet Nam National University, Ha Noi, Viet NamCorrespondence[email protected]
,
Do Tuan LongDepartment of Physics, College of Natural Science, Viet Nam National University, Ha Noi, Viet Nam
&
Nguyen Vu NhanDepartment of Physics, Academy of Defence force-Air force, Ha Noi, Viet Nam
Pages 45-51 | Received 23 Jul 2013, Accepted 12 Jan 2014, Published online: 23 May 2014
 
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Abstract

The magnetoresistance is one of the important properties of semiconductors. Starting from the hamiltonian for the electron-acoustic phonon system, we obtained the expression for the electron distribution function and especially the expression for the magnetoresistance in quantum wells with parabolic potential (QWPP) under the influence of electromagnetic wave (EMW) in the presence of magnetic field. We estimated numerical values and graphed for a GaAs/GaAsAl quantum well to see the nonlinear dependence of the magnetoresistance on the temperature of the system T, the amplitude E0 and the frequency Ω of the electromagnetic waves, the magnetic field B, the parameters of the quantum well and the momentum relaxation time τ clearly.

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